adulterant

(noun, adjective)

adjective

1. making impure or corrupt by adding extraneous materials

- the adulterating effect of extraneous materials

Similar word(s): extraneous, foreign, adulterating

noun

1. any substance that lessens the purity or effectiveness of a substance

- it is necessary to remove the adulterants before use

Similar word(s): adulterator

Definition categories: substance